Home / 836,263,270.14-1,254,392,656.65-311,620,428.42

Finding the Fourth Proportional to 836,263,270.14, 1,254,392,656.65 and 311,620,428.42

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Solution

The fourth proportional to 836,263,270.14, 1,254,392,656.65 and 311,620,428.42 is: 467,429,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,263,270.14 : 1,254,392,656.65 = 311,620,428.42 : x
  2. Step 2: Convert to fraction form
    836,263,270.14/1,254,392,656.65 = 311,620,428.42/x
  3. Step 3: Cross multiply
    836,263,270.14x = 1,254,392,656.65 × 311,620,428.42
  4. Step 4: Simplify right side
    836,263,270.14x = 390,894,377,072,175,040
  5. Step 5: Solve for x
    x = 390,894,377,072,175,040/836,263,270.14
  6. Step 6: Final answer
    x = 467,429,804.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.